Dispatchable Virtual Oscillator Control for Decentralized Inverter-Dominated Power Systems: Analysis and Experiments: Preprint

Gabsu Seo; Irina Subotic; Brian Johnson; Dominic Gross; Florian Dorfler; Marcello Colombino

Dispatchable Virtual Oscillator Control for Decentralized Inverter-Dominated Power Systems: Analysis and Experiments: Preprint

Gabsu Seo, Irina Subotic, Brian Johnson, Dominic Gross, Florian Dorfler, Marcello Colombino

Power Systems Engineering

Research output: Contribution to conference › Paper

Abstract

This paper presents an analysis and experimental validation of dispatchable virtual oscillator control (dVOC) for inverter-dominated power systems. dVOC is a promising decentralized control strategy that requires only local measurements to induce grid-forming behavior with programmable droop characteristics. It is dispatchable -- i.e., the inverters can vary their power generation via user-defined power set-points and guarantees strong stability. To verify its feasibility, a testbed comprising multiple dVOC-programmed inverters with transmission line impedances is designed. With an embedded synchronization strategy, the dVOC inverters are capable of dynamic synchronization, black start operation, and transient grid voltage regulation with dynamic load sharing, and real-time-programmable droop characteristics for backward compatibility. All these features are experimentally verified.

Original language	American English
Number of pages	9
State	Published - 2019
Event	APEC, Applied Power Electronics Conference - Anaheim, California Duration: 17 Mar 2019 → 21 Mar 2019

Conference

Conference	APEC, Applied Power Electronics Conference
City	Anaheim, California
Period	17/03/19 → 21/03/19

Bibliographical note

See NREL/CP-5D00-74307 for paper as published in IEEE proceedings

NREL Publication Number

NREL/CP-5D00-72774

Keywords

decentralized control
droop control
grid-forming control
microgrids
nonlinear control
synchronization
voltage source inverters

Access to Document

https://www.nrel.gov/docs/fy19osti/72774.pdf

Cite this

@conference{c8063a9118eb45bb807230bd8ab325c9,

title = "Dispatchable Virtual Oscillator Control for Decentralized Inverter-Dominated Power Systems: Analysis and Experiments: Preprint",

abstract = "This paper presents an analysis and experimental validation of dispatchable virtual oscillator control (dVOC) for inverter-dominated power systems. dVOC is a promising decentralized control strategy that requires only local measurements to induce grid-forming behavior with programmable droop characteristics. It is dispatchable -- i.e., the inverters can vary their power generation via user-defined power set-points and guarantees strong stability. To verify its feasibility, a testbed comprising multiple dVOC-programmed inverters with transmission line impedances is designed. With an embedded synchronization strategy, the dVOC inverters are capable of dynamic synchronization, black start operation, and transient grid voltage regulation with dynamic load sharing, and real-time-programmable droop characteristics for backward compatibility. All these features are experimentally verified.",

keywords = "decentralized control, droop control, grid-forming control, microgrids, nonlinear control, synchronization, voltage source inverters",

author = "Gabsu Seo and Irina Subotic and Brian Johnson and Dominic Gross and Florian Dorfler and Marcello Colombino",

note = "See NREL/CP-5D00-74307 for paper as published in IEEE proceedings; APEC, Applied Power Electronics Conference ; Conference date: 17-03-2019 Through 21-03-2019",

year = "2019",

language = "American English",

}

TY - CONF

T1 - Dispatchable Virtual Oscillator Control for Decentralized Inverter-Dominated Power Systems: Analysis and Experiments: Preprint

AU - Seo, Gabsu

AU - Subotic, Irina

AU - Johnson, Brian

AU - Gross, Dominic

AU - Dorfler, Florian

AU - Colombino, Marcello

N1 - See NREL/CP-5D00-74307 for paper as published in IEEE proceedings

PY - 2019

Y1 - 2019

N2 - This paper presents an analysis and experimental validation of dispatchable virtual oscillator control (dVOC) for inverter-dominated power systems. dVOC is a promising decentralized control strategy that requires only local measurements to induce grid-forming behavior with programmable droop characteristics. It is dispatchable -- i.e., the inverters can vary their power generation via user-defined power set-points and guarantees strong stability. To verify its feasibility, a testbed comprising multiple dVOC-programmed inverters with transmission line impedances is designed. With an embedded synchronization strategy, the dVOC inverters are capable of dynamic synchronization, black start operation, and transient grid voltage regulation with dynamic load sharing, and real-time-programmable droop characteristics for backward compatibility. All these features are experimentally verified.

AB - This paper presents an analysis and experimental validation of dispatchable virtual oscillator control (dVOC) for inverter-dominated power systems. dVOC is a promising decentralized control strategy that requires only local measurements to induce grid-forming behavior with programmable droop characteristics. It is dispatchable -- i.e., the inverters can vary their power generation via user-defined power set-points and guarantees strong stability. To verify its feasibility, a testbed comprising multiple dVOC-programmed inverters with transmission line impedances is designed. With an embedded synchronization strategy, the dVOC inverters are capable of dynamic synchronization, black start operation, and transient grid voltage regulation with dynamic load sharing, and real-time-programmable droop characteristics for backward compatibility. All these features are experimentally verified.

KW - decentralized control

KW - droop control

KW - grid-forming control

KW - microgrids

KW - nonlinear control

KW - synchronization

KW - voltage source inverters

M3 - Paper

T2 - APEC, Applied Power Electronics Conference

Y2 - 17 March 2019 through 21 March 2019

ER -

Dispatchable Virtual Oscillator Control for Decentralized Inverter-Dominated Power Systems: Analysis and Experiments: Preprint

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

Access to Document

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Cite this